Публичные MQTT брокеры

Server Broker Port Websocket TLS
iot.eclipse.org Mosquitto 1883 / 8883 n/a n/a
broker.hivemq.com HiveMQ 1883 8000 n/a
test.mosquitto.org Mosquitto 1883 / 8883 / 8884 8080 / 8081 n/a
test.mosca.io mosca 1883 80 n/a
broker.mqttdashboard.com HiveMQ 1883 n/a
mqtt.flespi.io flespi 1883 80 n/a
mqtt.swifitch.cz mosquitto 1883 n/a
mqtt.fluux.io ejabberd 1883 8883

MQTT websocket-client